Safety-razor blade



J. LLOBET SAFETY RAZOR BLADE A ril go, 1926,

Filed June 23, 1925 N g W6 Z m a J ATITQRNEYS Patented Apr. 20, 1926p JUAN LLO IBET or A ANA; CUBA.

' SAFETY-RAZOR BLADE.

Application filed June 23, 1925. Serial No. 39,107.

To all whom it comer-n:

Be it known that I, JUAN LLOBET, a citi-f zen of the United States, and a resident of .Habana,'Cuba, have invented certain new and useful Improvements in Safety-Razor Blades, of which the following is a speci- .these b fication. v I

This invention aims to provide an improved safety razor blade wherein means is provided to positively indicate use of the blade whereby to prevent palming off 'of old bl des as new, no matter how cleverly la'des may be reconditioned, wrapped and packaged.

A further object resides in the provision of a blade of this'character which has these advantages and capacities withoutaltering in any substantial way the structurahfeatures of theblade or necessitating any departure from its ordinary modeof use. A still further object of theinvention is to provide a blade of this character which is of sucha simple and practical const'ruction asl'to have the advantages mentioned without adding to the cost of the; blades, the metal ordinarily scraped being utilized to serve the purposes of the present invention. y

Other objects and advantages reside vin certain novel features of the jc0ns truction, arrangement and combination of parts which will be hereinafter more fully .described and particularly pointed out in the appended claims, reference being had to the accompanying drawings forming a part of this specification and in which:

Figure 1 is a plan view of a safety razor blade constructed in accordance with the presentinvention,

Figure 2 is a view thereof in transverse section, I

Figure 3 is a view partlyin section and artly in elevation 'showing'how the assem-. ly of the blade with the cap piece or backing alters the formation of the blade to indicate its use, and

Figure 4 is a view partly in section and partly in elevation showing how the blade in assembly coacts with the razor in the conventional manner.

Referring to the drawings the numeral 1 designates a razor blade having the usual body portion 2 on which cutting edges 3 are formed. In the central portion of the body 1 of the blade an o ening 4 is provided .to

accommodate the. t readed bolt 5 of the usual cap or backing 6 employed for clampmg the blade 1 on the head 7 of the razor blade. Positioning pins 9 are provided on the cap or backing 6 to properly position the cap and blade on the head. All of this is the standard and conventional construction.

'lhe present invention proposes the provision of lugs 10 in the openings 11, the

which the blade is formedand being oonnected with the blade by reduced and ham gible connectingportions 11. Centrally each lug is formed with centering apertures 12 designed to be engaged by the positionlng pins 9 .as shown 1n Figure 3 when the blade is assembled with the cap or backing-6 so that the assembly of :the blade with the razor will necessarily result' in the breaki'ing offof the lugs 10. The presence of the lugs 10 affords an indication that the blade has never beenused while their absence is "evidence of the ,use of the blade. In this wa the reconditioning and repacking of old blades and the palming off of such old blades on the public as new blades is prevented.

These advantages are had without alter- 85 ing the structure of the blade or its mode of lugs 10 being stamped from the'metal of operation whenin use. Figure 4 shows that the blade is assembled with the razor exactly as the conventional blade. Since the lugs 10 are formed of the material from which the blade is stamped the cost of the blade is not increased and yet fraud on the public is prevented.

I claim: I 1. A safety razor blade having a defined structure-and also haying means embodied in the blade structure and separable and independent of the operative elements of the blade. said means being permantly altered when the blade is used to indicate that the blade has been used 2. A safety razorblade having afr'angible element integral therewith and separate and independent of the operative elements of the blade and adapted to be broken off from the blade when the blade is usedto indicate that the blade has been used. I

3. A safety razor bladehaving an opening' and an element extending into said epening and adapted i0 he broken a the blade is used to indicate that the wa e has been used.

4. A safety razor blade heving'the nsufi positioning pin e**-enings and havirg e" ments extending like said openii adapted-to be broken off by the p051 pins of the razor en the blade is to indicate that the blade has been us I the bd Tvltli 5. \A safety razor blade having the us me lugs :1 re adapted 5.6. l positioning pin openings havin 1 c osition -pins .l'hstamped from the material e 53- idiente the disposed in said o aenings s :1 lugs he SILiL h1g5 7 eeuteing' frangible connecting p61 is eonnec Eh pins. the same with the body of 1e blade Whei by the lugs are adapted l0 be ordinal off J 

